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Can't get pilot light to stay lit - Air Conditioners

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Clean the thermocouple with sandpaper. Make sure to turn the furnace off first.

Posted on Jun 18, 2008

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How to light pilot light


Your gas valve has 3 positions. "OFF", "PILOT" and "ON". Turn it to "PILOT" and push it down hard. Hold it 2-4 seconds and light the pilot assembly. Keep holding it for 10-15 seconds and slowly let it up. The pilot should stay lit.

Mar 31, 2011 | Air Conditioners

1 Answer

Pilot light wont stay lit, even when on high


Pilot lights are supposed to stay on when the flames are burning. If they didn't the flames would go out, because the pilot flame against the Thermocouple keeps the pilot burning. It's a safety feature.

Mar 08, 2011 | Air Conditioners

1 Answer

The pilot light will stay lit. Go to turn on heater and stays on briefly and goes out The heater wont stay lit.


If the fan comes on and blows out the pilot light then you need a new furnace because that's the sign of a crack in the heat exchanger. Need a little better description. Do the burners light then the fan come`s on and then it goes out completely?

Nov 24, 2010 | Air Conditioners

1 Answer

Im calling for heat from the thermastat and control panel, the boiler light and and the fan is running, but no matter how many times i keep re trying the pilot and burner will not commence, is there...


I would check to make sure control on gas valve is in on position and pilot is lit if you have a standing pilot. If you have a spark or hot surface ignitor make sure they are trying to lit pilot. If you have standing pilot model and pilot lit is not on. Turn control on gas valve to off,wait five mins. then turn to pilot. Depress botton and try to light pilot. If it lights hold down for a couple of mins. then release.. If pilot stays lit turn control to on. If thermostat is calling for heat this should bring main burner on. If pilot does not stay lit then replace thermocouple. Hope this helps. Thanks

Nov 16, 2010 | Air Conditioners

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We have an older (22 years?) 'Insta-Flame (model HE30 TN) natural gas fireplace insert. The pilot light is out, as we painted to inside of the firebox. The instructions show to 1) turn the dial to 'off'',...


On some gas valves the pilot setting is on the same dial as pilot on and on .on others the pilot light has aseperate button on right side of control dial. If yours has this there will be a cut out on cotrol dial that must be aligned with button to allow it to be depressed to light pilot. If yours has this align control dial cutout with pilot button,depress button and light pilot,hold for about one min. and slowly release,if pilot light stays lit,turn down thermostat and rotate control dial normally to right . There should be arrows or marks on dial and gas valve to line up. If pilot light stays lit turn dial to next position and check to see that pilot is still lit. This should be on position, turn up thermostat and burner should light. If your dial has pilot light setting on it then rotate dial to each position,try to depress dial and when you have right one dial will depress allowing you to light pilot. Follow same procedure as above and you should be in business. Hope this helps.Thank you

Nov 11, 2010 | Air Conditioners

1 Answer

Why would the pilot light ignite then turn off?


If it is a true "pilot" light, it needs to be held down long enough to generate the milivolts needed to prove to the gas valve that he is ready to open, other wise the gas valve would open, not igniting, thus causing a "gas leak". Turn the t-stat OFF, turn gas valve to pilot, push down on pilot knob, light pilot and hold for 2 minutes. After 2 mins let go, and if pilot stays lit, turn gas valve to ON, and turn the stat to heat and turn it up to desired temp. If pilot does not stay lit after doing above, try sanding thermo couple( the thing the flame is sitting in) or just spend the $15 bucks and replace therm couple. azeddysac@yahoo.com

Nov 06, 2010 | Ruud UAPA024 Air Conditioner

1 Answer

Can't find instructions on lennox gf 8 series furnace


Does it have a standing pilot light? On new units, there is an igniter and not a pilot. But if you have a standing pilot, you will move the gas valve to "pilot" and push down the red button while holding a flame under the pilot located by one of the jets. Once it lights continue to hold the button down for a minute or so and then release the button. The pilot should stay lit. Then turn the dial to the on position. That's it.......... If the pilot won't stay lit then the thermocouple is bad and needs to be replaced.

Apr 05, 2009 | Air Conditioners

2 Answers

Pilot light will not stay lit


is it full of dust my hot water used to do the same till i blew the dust and fluff out

Nov 18, 2007 | Air Conditioners

1 Answer

Pilot light will not stay lit


Will it stay lit for a while? If so light the pilot light, Turn on the blower fan, and watch the pilot light. Look for any air that's blowing the pilot light around. if the pilot lite is moving around then you could have a bad heat exchanger. If so you should get a carbonmonixide detector and have your furnace inspected for this. One thing to check also is make sure the thermocouple is at least 1/4 inch into the flame.

Nov 12, 2007 | Air Conditioners

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